86 lines
2.1 KiB
C++
86 lines
2.1 KiB
C++
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/*
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* Copyright 2003-2021 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "ReadFrames.hxx"
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#include "pcm/MixRampAnalyzer.hxx"
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#include "io/FileDescriptor.hxx"
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#include "util/ConstBuffer.hxx"
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#include "util/PrintException.hxx"
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#include <array>
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#include <memory>
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#include <stdio.h>
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#include <stdlib.h>
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int
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main(int, char **) noexcept
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try {
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constexpr std::size_t frame_size = sizeof(ReplayGainAnalyzer::Frame);
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const FileDescriptor input_fd(STDIN_FILENO);
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MixRampAnalyzer a;
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while (true) {
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std::array<ReplayGainAnalyzer::Frame, 4096> buffer;
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size_t nbytes = ReadFrames(input_fd,
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buffer.data(), sizeof(buffer),
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frame_size);
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if (nbytes == 0)
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break;
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const std::size_t n_frames = nbytes / frame_size;
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a.Process({buffer.data(), n_frames});
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}
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const auto data = a.GetResult();
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const auto total_time = a.GetTime();
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printf("MIXRAMP_START=");
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MixRampItem last{};
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for (const auto &i : data.start) {
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if (i.time >= FloatDuration{} && i != last) {
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printf("%.2f %.2f;", i.volume, i.time.count());
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last = i;
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}
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}
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printf("\n");
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printf("MIXRAMP_END=");
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last = {};
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for (const auto &i : data.end) {
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if (i.time >= FloatDuration{} && i != last) {
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printf("%.2f %.2f;", i.volume, (total_time - i.time).count());
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last = i;
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}
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}
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printf("\n");
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return EXIT_SUCCESS;
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} catch (...) {
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PrintException(std::current_exception());
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return EXIT_FAILURE;
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}
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